Steam-trap.



PATENTBD Nov.1o,`19os'.

E. HIPPARD.

. STEAM TRAP. .APPLICATION FILE'D HAY 20, 19 02, BBNBWED 00T. 1.4,V 1903.

2 SHEETS-SHEET l.

No mmm..

MW a,

NQ. 743,933. PATBNTED Nov. 1o,- 1903.

B. HIPPARD.

STEAM TRAP. y APPLIOATION FILED MAY 20. 1902. BVENEWED 00T. 14, 1903.

no 110ML 2 sums-snm a.

iro. Maese.

UNITE-D STATES i -iatented November 10, 1903;. i

EMANUEL HIPPARD, OF YOUNGSTOWN, OHIO.

STEAM -TRA-P.

SPECIFICATION `forming part of Letters Patent No. 743,983, dated November 10, 1903.

i Application filed llliay 20, 1902. Renewed October 14, 1903. Serial No. 177,008. (No model.)

` do hereby declare the following to be a full,

clear, and'exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. f My invention relates to that class of steamtrapshaving an oscillatory receiver which receives the water of condensation when in a raised position and receives steam to expel the water when in itslowered position; and it consists, essentially, of novelly-constructed mechanism for quickly and positively oscillating the receiver.

The invention further consists in the mechanism for automatically cutting od the dow of Water to the receiver and opening the steam-inlet to admit steam into the receiver to expel the water.

The invention further consists in mechanism for automatically permitting the escape of the water back into the boiler andthe escape of the entrapped air; and the invention further consists in the general arrangement and combination of the several parts, as will be hereinafter described, and stated in the claims. Y l

The principal object of the invention is to simplify and cheapen the cost of construction of this class of traps without in any Way impairing their durability and edectivenes's in operation. l

Other objects will become apparent upon the detail description of the invention.

In the drawings, Figure l is a top plan view of my improved device; Fig. '2, aside elevation, the face-plate of the steam box or casing being removed to show the mechanism for operating the steam-inlet valve; Fig. 3, a detail section of the air-escape valve; Fig. 4, a vertical section of a portion of the oscillatory receiver, showing the means by which steam is admitted to the receiver to expel the water therefrom.; Fig. 5, a detail section on line 5 5 of Fig. 4t; Fig. 6, a section on line 6 6 of Fig. l, and Fig. 7 a section on line 7 7 of Fig. 1.`

Referring to the several views, the letter a indicates 'a suitable base provided at one end with a'yoke a and at the other end with a U- shaped standard a2. -Fulcrumed on the ends of yoke a.' is an arch-shaped rockable support as, which is provided with pivotal points a4, seated in sockets a5 in the ends of the yoke a'. The ends of said yoke a are provided with outwardlyprojecting stops a6, upon which the heels ai of the rockable support as are adapted to rest and make contact. The ends of the U-shaped standard are provided with suitable seats a8 and a9, respectively, and secured on the seat o, is a steam box or casing h, provided with aremovable face-plate b'. The

inner side of the steam-box is provided with a bearing b2, in which is jonrnaled one end of a rcckable hollow shaft h3, the other end of said shaft being journaled in abearing h4, secured to the seat a9. The bearings ligand b4 are provided with suitable stufng-boxes b5 and h6, respectively,as shown in Figs. l and 6. The center of the hollow shaft is formed with a chamber hi', provided with a short communieating pipe bs, which is screwed into one end of an oscillatory receiver c. The top of the steam-box is provided near one end with an opening b9, into which is screwed a screwthreaded end of a casing d, containing a valve ci', having a stem d2. The free end of the valve-stem is seated in a socket d3 of an arm d4, said arm being secured-on one end of the rockable hollow shaft. Screwed into the valve-casing d is a pipe d5, which leads to the boiler or steam-generator. ('Not shown.) Secured to the arm d4 is a curved arm d6,which has its free end in constant contact with the free end of a flap-valve (i7, adapted to open and close a passage d8, leading outside of the steam-box, through which passage the entrapped air and steam are permitted to pass during the filling of the oscillatory receiver with the water of condensation.

In the upper part of the chamber b" is tapped a steam-pipe e, leading to the oscillatory receiver, as shown at e', and the chamber is provided with a partition h1", which prevents communication with the other or opposite end of the hollow shaft, als shown in Fig. 5. Communicating with the opposite end of the hollow shaft is a T branohf, having an inlet-pipef, controlled by a check-valve f2, and an outlet ordischarge-pipe f3, controlled by a check-valve f4. The Water Iiowing from the receiver (not shown) that is placed at the steam-pipes to receive the water of condensation that takes place in the radiator and pipes is admitted by the valve f2 to the oscillatory receiver by way. of theA hollow shaft b3, and when the water is expelled from the oscillatory receiver it is returned back into the boiler through the pipe f3 by means of the Valve f4.

Pivoted to a stud c', secured to the oscillatory receiver, is one end of a connecting-link c2, the other end of said link being pivoted to one end of a counterbalance-beam o3, passing through a slot in the rockable support a3. On the outer or free end of the beam is a weight c4, capable of being adjusted at any desired point thereon and secured by abinding-screw c5.

The operation of the device is as follows: When the receiver is iilled with the water coming from the radiator-pipes or other heating system, (not shown,) the receiver will overcome the weight c4and be quicklydropped to its lower position. (Shown by the dotted lines in Fig. 2.) In its downward movement the receiver rocks the hollow shaft to which it is secured, and the water passing out through pipef3 opens the valve f4, permitting the water to pass to the boiler, the checkvalve f2 closing automatically. At the same time this operation is taking place the arm d4 is rocked upward and the valve dopened to admit steam from the boiler, thus allowing the pressure in the trap and boiler to become uniform, and a check-valve, which is usually placed at the-inlet to the boiler below the water-line, opens by the weight of the water and allows the water to enter the boiler. As the steam is admitted into the steam-box it passes through the passage :12, Fig. 5, of the hollow shaft into the pipe 58 and thence into the receiver, forcing the water therefrom. 'Ihe expelled water hows through the discharge-pipe and forcibly opening the checkvalve f4 passes into the boiler, as aforesaid. The oscillatory receiver resumes its normal position as soon as the water is discharged.

It is obvious from the foregoing description of the operation of the trap that when the accumulated water within the oscillatory receiver overcomes the weight c4 the free end of the receiver will at once begin to fall, the weight of balance being suddenly shifted over the center or fulcrum point. It will be readily seen that this overweight of balance is materially increased by the weight c4, and hence the downward movement of the receiver is greatly increased, permittinga quick drop of the same. When the water in the receiver has been expelled by the force' of the iniiowing steam,tl1e weight c4 quickly returns the receiver to its normal position. The quickness of the fall and rise of the receiver is materially assisted by the low position of the fulcrum-point a7, which, it will be observed, is situated approximately midway between the top and bottom of the free end of the receiver or, in other words, a slight distance below the horizontal ceu ter of said receiver, as such position of the fulcrum-point greatly increases the leverage of the beam c3 in both its rising and falling movement.

Various modifications and changes in the construction of my improved trap may be made without departing from the spirit of my invention or sacrificing the principle thereof.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a steam-trap, the combination with a rockable hollow shaft having a water-receiver attached thereto, the hollow shaft being provided at one end withinlet and outlet valves, and at the other end with a steam-valve for admitting steam into the receiver, of a rockable arm secured to the hollow shaft and adapted to open and close the steam-valve, an air-valve for the receiver, and means independent of the steam-valve stem attached to the rockable arm for opening and closing the air-valve.

In a steam-trap, the combination with a rockable hollow shaft, a. water-receiver attached thereto, inlet and outlet valves at one end of the hollow shaft and a steam-box atv the other end thereof, of a steam-valve for admitting steani'into the steam-box, a steampipe leading from said hollow shaft to the receiver, and air-valve for said receiver, a rockable arm secured to the hollow shaft and adapted to open and close the steam-Valve, and an arm secured to the rockable arm for opening and closing the air-valve.

3. Ina steam-trap, the combination with an oscillatory receiver, of a rockable support having its fulcrum-points at opposite sides of the receiver, and a counterbalance-beam adadjustably mounted in said support, said beam having one end connected to said receiver and the other end provided with a weight.

4, In a steam-trap, the combination with an oscillatory receiver, of a rockable support, and a counterbalance-beam adjustably attached to the rockable support, said beam having one end connected to the receiver and the other end provided with a weight, said rockable support having its fulcrum-points situated approximately midway between the upper and lower surfaces of the receiver.

5. In a steam-trap, the combination with an oscillatory receiver, of a rockable support, a counterbalance beam adjustable in the rockable support, a link connecting one end IOO of the counterbelancebeam With the reand the receiver, and an adjustable weight io eeiver, and a Weight; adjustable on the other on the other end of said counterbalance-beam.

end of said eounterbalanee-beam. In testimony whereof I affix my signature 6. In a. steam-trap, the combination with in the presence of two witnesses.

5 an oscillatory receiver, of a base-supported yoke, a roekable support fulorumed on he EMANUEL H-IPPARD' yoke, a counterbalanee-beam adjustable in Witnesses: Y the rockable support, a link connection be- W. R. GRAHAM, tween one end of the counterbalanee-beam W. B. HALL. 

